*{
    margin: 0;
    padding: 0;
}
li{
    list-style: none;
}
img{
    border: none;
    vertical-align: middle;
}
h3{
    color: #666;
    font-size: 20px;
}
a{
    color:#666;
    text-decoration: none;
}
.center{
    text-align: center;
}
.clearfix:after{
    display: table;
    content: "";
    clear: both;
}
.fl{
    float: left;
}
.btn{
    padding: 5px 5px;
    background: green;
    text-align: center;
    height: 30px;
    line-height: 30px;
    border: 1px solid green;
    border-radius: 8px;
    cursor: pointer;
    font-size: 12px;
    color: white;
    
}
.spanbtn{
    margin: 5px;
    padding: 2px 20px;
    background: #ffad17;
    text-align: center;
    height: 24px;
    line-height: 24px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 12px;
    color: white;
    display: inline-block;
    font-weight: 400;
}
.spangreenbtn{
    background: #2dbe60;
}
.spanbtn:hover{
    background: #f0a00d;
}
.spangreenbtn:hover{
    background: #28a955;
}
.error{
    padding-left:5%;
    color:orangered;
    font-size:12px;
}